This idea is very cool!
But I would never use it.
Its only you who can see the time change and I'm not sure if there are lights in the lobby's.
Maybe if you can share it with your friends.
If you set the time your friends see it to .

I don't think it would be a good idea to have it in games because as said before it does kind of make voting for time kind of pointless. I still like the idea for Lapiz and above to change their own time.